book chapter published J. Christoph Scheytt author 371440000-0002-5950-6618 Tobias Schwabe author 39217 Karanveer Singh author Christian Kress author 132560000-0002-4403-2237 Thomas Schneider author J. ChristophScheytt editor ChristianKress editor ManfredBerroth editor StephanPachnicke editor JeremyWitzens editor 58 department 623 department <jats:title>Abstract</jats:title> <jats:p>Optically assisted digital-to-analog converters (DACs) using Nyquist pulse sequences (NPSs) are presented and investigated. Therefore, NPSs are mathematically described and analyzed. Based on this, the operating principle of a precise optical Nyquist pulse synthesizer digital-to-analog converter (PONyDAC) is described. Possible architectures of PONyDAC are derived and compared in terms of performance and practicability. Moreover, the limits of PONyDAC systems and their superiority over classical electronic DACs are discussed. Furthermore, discrete building-block based implementations and monolithic implementations in electronic-photonic integrated circuits (EPICs) are presented. To enable a practicable monolithic integration, a shrinkage of the Mach-Zehnder modulators (MZMs) has been performed by applying forward-biased phase shifters (FB-PSs). These FB-PSs are analyzed and modeled to allow the precise and reliable design of PONyDAC systems with multiple MZMs. Finally, data conversion and data transmission experiments are carried out to demonstrate the systems functionality, quantify its performance, and prove their superiority over purely electronic DACs.</jats:p> Springer Nature Switzerland2026 eng 9783032083395 978303208340110.1007/978-3-032-08340-1_4 Scheytt, J. C., Schwabe, T., Singh, K., Kress, C., &#38; Schneider, T. (2026). Precise Optical Nyquist Pulse Synthesizer Digital-to-Analog Converter. In J. C. Scheytt, C. Kress, M. Berroth, S. Pachnicke, &#38; J. Witzens (Eds.), <i>Electronic-Photonic Integrated Systems for Ultrafast Signal Processing</i>. Springer Nature Switzerland. <a href="https://doi.org/10.1007/978-3-032-08340-1_4">https://doi.org/10.1007/978-3-032-08340-1_4</a> @inbook{Scheytt_Schwabe_Singh_Kress_Schneider_2026, place={Cham}, title={Precise Optical Nyquist Pulse Synthesizer Digital-to-Analog Converter}, DOI={<a href="https://doi.org/10.1007/978-3-032-08340-1_4">10.1007/978-3-032-08340-1_4</a>}, booktitle={Electronic-Photonic Integrated Systems for Ultrafast Signal Processing}, publisher={Springer Nature Switzerland}, author={Scheytt, J. Christoph and Schwabe, Tobias and Singh, Karanveer and Kress, Christian and Schneider, Thomas}, editor={Scheytt, J. Christoph and Kress, Christian and Berroth, Manfred and Pachnicke, Stephan and Witzens, Jeremy}, year={2026} } Scheytt, J. Christoph, et al. “Precise Optical Nyquist Pulse Synthesizer Digital-to-Analog Converter.” <i>Electronic-Photonic Integrated Systems for Ultrafast Signal Processing</i>, edited by J. Christoph Scheytt et al., Springer Nature Switzerland, 2026, doi:<a href="https://doi.org/10.1007/978-3-032-08340-1_4">10.1007/978-3-032-08340-1_4</a>. J.C. Scheytt, T. Schwabe, K. Singh, C. Kress, T. Schneider, in: J.C. Scheytt, C. Kress, M. Berroth, S. Pachnicke, J. Witzens (Eds.), Electronic-Photonic Integrated Systems for Ultrafast Signal Processing, Springer Nature Switzerland, Cham, 2026. J. C. Scheytt, T. Schwabe, K. Singh, C. Kress, and T. Schneider, “Precise Optical Nyquist Pulse Synthesizer Digital-to-Analog Converter,” in <i>Electronic-Photonic Integrated Systems for Ultrafast Signal Processing</i>, J. C. Scheytt, C. Kress, M. Berroth, S. Pachnicke, and J. Witzens, Eds. Cham: Springer Nature Switzerland, 2026. Scheytt, J. Christoph, Tobias Schwabe, Karanveer Singh, Christian Kress, and Thomas Schneider. “Precise Optical Nyquist Pulse Synthesizer Digital-to-Analog Converter.” In <i>Electronic-Photonic Integrated Systems for Ultrafast Signal Processing</i>, edited by J. Christoph Scheytt, Christian Kress, Manfred Berroth, Stephan Pachnicke, and Jeremy Witzens. Cham: Springer Nature Switzerland, 2026. <a href="https://doi.org/10.1007/978-3-032-08340-1_4">https://doi.org/10.1007/978-3-032-08340-1_4</a>. Scheytt JC, Schwabe T, Singh K, Kress C, Schneider T. Precise Optical Nyquist Pulse Synthesizer Digital-to-Analog Converter. In: Scheytt JC, Kress C, Berroth M, Pachnicke S, Witzens J, eds. <i>Electronic-Photonic Integrated Systems for Ultrafast Signal Processing</i>. Springer Nature Switzerland; 2026. doi:<a href="https://doi.org/10.1007/978-3-032-08340-1_4">10.1007/978-3-032-08340-1_4</a> 655182026-04-29T14:14:21Z2026-04-29T14:28:40Z